{"id":41433,"date":"2023-05-31T16:26:21","date_gmt":"2023-04-07T07:59:21","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/postgresql%e7%9a%84%e9%85%8d%e7%bd%ae\/"},"modified":"2024-04-30T06:48:54","modified_gmt":"2024-04-29T22:48:54","slug":"postgresql%e7%9a%84%e9%85%8d%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/postgresql%e7%9a%84%e9%85%8d%e7%bd%ae\/","title":{"rendered":"PostgreSQL\u7684\u914d\u7f6e"},"content":{"rendered":"<h1>\u9996\u5148<\/h1>\n<p>\u6682\u4e14\u606d\u559cBlast One Piece\u83b7\u5f97\u6709\u9a6c\u7eaa\u5ff5\u8d5b\u7684\u80dc\u5229\u3002<\/p>\n<p>\u6240\u4ee5\u8fd9\u6b21\u6211\u4f1a\u5199\u4e0b\u6709\u5173postgresql\u7684\u521d\u59cb\u8bbe\u7f6e\u4f5c\u4e3a\u5907\u5fd8\u5f55\u3002<\/p>\n<p>\u64cd\u4f5c\u7cfb\u7edf\u662fUbuntu\u3002<\/p>\n<h1>\u5b89\u88c5postgresql<\/h1>\n<p>\u5b89\u88c5PostgreSQL\u9700\u8981<\/p>\n<pre class=\"post-pre\"><code>sudo apt-get install postgresql\r\n<\/code><\/pre>\n<p>\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u7684\u4e2d\u6587\u53e5\u5b50\u6765\u8868\u8fbe\u76f8\u540c\u7684\u610f\u601d\uff1a\u201c\u53ef\u4ee5\u3002\u201d<\/p>\n<p>\u4e4b\u540e<\/p>\n<pre class=\"post-pre\"><code>sudo passwd postgres\r\n<\/code><\/pre>\n<p>\u901a\u8fc7\u8bbe\u7f6e\u5bc6\u7801\u8fdb\u884c\u8bbe\u5b9a\u3002<\/p>\n<h1>\u8fde\u63a5\u5230SQL\u670d\u52a1\u5668<\/h1>\n<p>\u8fde\u63a5\u5230SQL\u670d\u52a1\u5668<\/p>\n<pre class=\"post-pre\"><code>su postgres\r\n<\/code><\/pre>\n<p>\u8f93\u5165\u540e\u5c06\u8981\u6c42\u8f93\u5165\u5bc6\u7801<\/p>\n<pre class=\"post-pre\"><code>psql\r\n<\/code><\/pre>\n<p>\u53ea\u8981\u8f93\u5165&#8221;\u3068\u5165\u529b\u3059\u308c\u3070&#8221;<\/p>\n<pre class=\"post-pre\"><code>postgres=#\r\n<\/code><\/pre>\n<p>\u51fa\u73b0\u4e86\u7c7b\u4f3c\u7684\u6587\u5b57\u3002<\/p>\n<p>\u7136\u800c\uff0c\u5c31\u6211\u4e2a\u4eba\u800c\u8a00<\/p>\n<pre class=\"post-pre\"><code>psql: could not connect to server: No such file or directory\r\n        Is the server running locally and accepting\r\n        connections on Unix domain socket \"\/var\/run\/postgresql\/.s.PGSQL.5432\"?\r\n<\/code><\/pre>\n<p>\u51fa\u73b0\u4e86\u8fd9\u6837\u7684\u9519\u8bef\u3002<\/p>\n<p>\u4e00\u5f00\u59cb\u6211\u4ee5\u4e3a\u6ca1\u6709s.PGSQL.5432\u8fd9\u4e2a\u6587\u4ef6\u5e94\u8be5\u600e\u4e48\u529e\u2026\u4e8e\u662f\u6211\u8fdb\u884c\u4e86\u8c03\u67e5\uff0c\u53d1\u73b0\u8fd9\u4e2a\u9519\u8bef\u662f\u56e0\u4e3a\u6ca1\u6709\u542f\u52a8sql\u670d\u52a1\u5668\u800c\u51fa\u73b0\u7684\u3002<\/p>\n<p>\u6240\u4ee5\u5982\u679c\u9047\u5230\u8fd9\u4e2a\u9519\u8bef<\/p>\n<pre class=\"post-pre\"><code>sudo \/etc\/init.d\/postgresql start\r\n<\/code><\/pre>\n<p>\u53ea\u8981\u6309\u201c\u3068\u201d\u952e\u5c31\u53ef\u4ee5\u4e86<\/p>\n<p>\u65e0\u4e8b\u5e94\u8be5\u542f\u52a8SQL\u5e76\u4e14\u4e0d\u4f1a\u51fa\u73b0\u9519\u8bef\u3002<\/p>\n<h1>\u65e0\u6cd5\u521b\u5efa\u7528\u6237<\/h1>\n<p>\u9996\u5148\uff0c\u6211\u8ba4\u4e3a\u914d\u7f6e\u5df2\u7ecf\u5b8c\u6210\u4e86\uff0c\u6240\u4ee5\u6211\u5c1d\u8bd5\u901a\u8fc7\u5728rails\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4f7f\u7528&#8221;createuser -d -P name&#8221;\u547d\u4ee4\u6765\u521b\u5efa\u4e00\u4e2a\u7528\u6237\uff0c\u4f46\u662f\u51fa\u73b0\u4e86\u4ee5\u4e0b\u9519\u8bef\u3002<\/p>\n<pre class=\"post-pre\"><code>createuser: could not connect to database postgres: FATAL:  role \"root\" does not exist\r\n<\/code><\/pre>\n<p>\u770b\u8d77\u6765\u95ee\u9898\u4f3c\u4e4e\u662f\u6ca1\u6709\u540d\u4e3a&#8221;root&#8221;\u7684\u89d2\u8272\u3002<\/p>\n<p>\u5236\u4f5c\u5377\u5f0f\u7684\u65b9\u6cd5<\/p>\n<pre class=\"post-pre\"><code>su postgres\r\npsql\r\n<\/code><\/pre>\n<p>\u5f53\u8f93\u5165\u5e76\u663e\u793a\u4e3apostgres=#\u65f6<\/p>\n<pre class=\"post-pre\"><code>CREATE ROLE rolename LOGIN CREATEDB CREATEROLE PASSWORD 'password';\r\n<\/code><\/pre>\n<p>\u5982\u679c\u8fd9\u6837\u5c31\u53ef\u4ee5\u7684\u8bdd<\/p>\n<p>\u5982\u679c\u4e0d\u5199CREATEROLE<\/p>\n<pre class=\"post-pre\"><code>createuser: creation of new role failed: ERROR:  permission denied to create role\r\n<\/code><\/pre>\n<p>\u4ee5\u8fd9\u79cd\u65b9\u5f0f\u88ab\u8d23\u5907\u3002<\/p>\n<p>\u987a\u4fbf\u63d0\u4e00\u4e0b\uff0c\u5982\u679c\u60f3\u8981\u66f4\u6539\u89d2\u8272\u4fe1\u606f\u7684\u8bdd<\/p>\n<pre class=\"post-pre\"><code>ALTER ROLE name WITH CREATEROLE \r\n<\/code><\/pre>\n<p>\u53ef\u4ee5\u50cf\u8fd9\u6837\u8fdb\u884c\u66f4\u6539\u3002<\/p>\n<h1>\u4f7f\u7528Rails\u65f6\u91c7\u7528postgresql\u6570\u636e\u5e93\u3002<\/h1>\n<p>\u5982\u679c\u5728Rails\u4e2d\u4f7f\u7528PostgreSQL<\/p>\n<p>\u9996\u5148<\/p>\n<pre class=\"post-pre\"><code>createuser usernmae\r\ncreatedb dbname\r\n<\/code><\/pre>\n<p>\u521b\u5efa\u4e00\u4e2a\u7528\u6237(user)\u548c\u6570\u636e\u5e93(db)<\/p>\n<p>\u5f53\u521b\u5efa\u4e00\u4e2a\u65b0\u7684Rails\u9879\u76ee\u65f6<\/p>\n<pre class=\"post-pre\"><code>rails new name -TB --database=postgresql\r\n<\/code><\/pre>\n<p>\u901a\u8fc7\u8fd9\u6837\u505a\uff0c\u53ef\u4ee5\u4f7f\u7528PostgreSQL\u521b\u5efaRails\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n<p>\u5728`config\/database.yml`\u6587\u4ef6\u7684`default`\u4f4d\u7f6e<\/p>\n<pre class=\"post-pre\"><code>username: username\r\npassword: pass\r\nhost: localhost\r\n<\/code><\/pre>\n<p>\u4ee5\u8ffd\u52a0\u7684\u65b9\u5f0f\u5199\u5165<\/p>\n<p>\u53d1\u5c55\u65b9\u9762\u7684<\/p>\n<pre class=\"post-pre\"><code>database: dbname\r\n<\/code><\/pre>\n<p>\u91cd\u65b0\u5199\u3002<\/p>\n<p>\u73b0\u5728\u6211\u53ef\u4ee5\u4f7f\u7528Rails\u6765\u4f7f\u7528PostgreSQL\u4e86\u3002<\/p>\n<h1>\u6587\u732e\u5f15\u7528<\/h1>\n<p>\u4ece\u5b89\u88c5\u5f00\u59cb\u8bbe\u7f6eRails-PostgreSQL\u73af\u5883\u3002<\/p>\n<p>\u5728Rails\u4e2d\u4f7f\u7528PostgreSQL\uff08\u4ece\u5b89\u88c5\u5230\u8fc1\u79fb\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148 \u6682\u4e14\u606d\u559cBlast One Piece\u83b7\u5f97\u6709\u9a6c\u7eaa\u5ff5\u8d5b\u7684\u80dc\u5229\u3002 \u6240\u4ee5\u8fd9\u6b21\u6211\u4f1a\u5199\u4e0b\u6709\u5173postgresql\u7684 [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-41433","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with 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